<%= form_for @painting, :html => {:multipart => true} do |f| %>
  <%= f.hidden_field :user_id %>
  <p>
    <%= f.label :remote_image_url, "Profilbild URL" %><br />
    <%= f.text_field :remote_image_url %>
  </p>
  <p><%= f.submit %></p>
<% end %>
